
January 26, 2011

I believe that it means the rifle was set up for smokeless rounds vs. black powder. I don’t know how you would ever know if it left the factory with the Lyman 21. I would think it would note “Lyman receiver” in the letter. Does it have a blank in the rear slot with no signs of wear from an elevator just ahead of the blank? Also, is the receiver sight coded “NI” on the back side? I assume the rifle is a 45-70.
~Gary~

January 27, 1992

The 1916 Winchester Catalog has a section on cartridges and ballistics.
Several cartridges are listed as “W.H.V.” and show the difference in trajectories and velocities.
Hope this may help.
Reprints of this catalog are available and most come in hard cover.
A great reference book.
Roger B
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